QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem885918
USGS iscgem885918
6 Feb 1957, 20:34
35 km S of Petropavlovka, Russia
A magnitude 6.4 mw earthquake at 10 km depth.
Published location
Where is 35 km S of Petropavlovka, Russia?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
50.291000, 105.331000
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What the numbers mean
Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.
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Catalog fields and provenance
Event ID
iscgem885918
Coordinates
50.291, 105.331
Network
iscgem
Significance
620